XCustomBox

Seal End Box

Ensure maximum product safety and structural strength with our custom Seal End Box packaging. Engineered with overlapping flaps that lock together using industrial glue or adhesive tape, this style provides an exceptionally strong barrier that prevents accidental openings. Partner with XCustomBox to get factory-direct wholesale pricing, zero initial tooling fees, and fast shipping anywhere in the United States.


Description

High-Speed Packing • 100 MOQ

Custom Seal End Cartons & 1-2-3 Auto-Bottom Retail Boxes

Precision-engineered seal end boxes designed for automated high-speed production lines, tamper-evident retail closures, and heavy consumer goods. Featuring overlapping adhesive-ready dust flaps and optional 1-2-3 snap-lock bottoms that support dense, heavy retail items with zero bottom blowout.

1. Automated Packaging Line & High-Volume Compatibility

Seal end cartons are the undisputed industrial standard for high-volume retail goods. Engineered with precision die-cut scoring and calibrated flap grain direction, these boxes run flawlessly through automated cartoning machinery or can be glued manually with cold/hot melt adhesives. Overlapping end flaps guarantee tamper evidence: the box cannot be opened without visibly tearing the paper fiber.

2. 1-2-3 Snap Lock Bottom Bottom Strength

For manual assembly lines, our 1-2-3 auto-bottom configuration offers unbeatable weight support. Three interlocking base flaps snap together securely in three steps without tape or glue, bearing up to 15 lbs of concentrated product weight—making them ideal for glass jars, dry grocery, supplements, and heavy hardware.

3. Structural Paperboard Caliper (16pt – 26pt SBS & CCNB)

Tailored to high-speed sealing and structural stacking demands:

  • Solid Bleached Sulfate (SBS): Premium bright white virgin cardstock for cosmetics, pharmaceuticals, and high-end consumer packaged goods.
  • Clay Coated Newsback (CCNB): High-density recycled paperboard with a clay-coated white exterior and grey kraft interior, providing superior cost-efficiency for dry food and household retail.
  • Natural Kraft Cardstock: Eco-conscious biodegradable packaging with high tear resistance.

4. Technical Specifications Summary

SpecificationStandard Capability
Minimum Order Quantity (MOQ)100 Units (Factory-Direct Wholesale)
Cardstock Caliper16pt – 26pt SBS / CCNB / Kraft (350 GSM – 500 GSM)
Closure StyleFull Overlapping Seal End / 1-2-3 Snap Lock Bottom
Tamper EvidenceFiber-Tear Tamper-Evident Adhesive Seal
Prepress ProofFree 24h 3D Photorealistic Digital Mockup
Production Turnaround8 – 10 business days
Shipping FormatShipped Flat (Pre-Glued Side Seam for 1-Second Setup)

Know your Custom Boxes

Dimension Icon
Dimensions: Custom Shapes & Sizes (Made To Order)

Print Icon
Print Options: CMYK, PMS, No Print

Card Stock Icon
Cardstock: 10pt - 48pt cardstock, Brown/white Kraft, Corrugated, Buxboard, Texture & Linen

Quantity Icon
Quantity: Sampling (1-5 samples), Actual Order (100-500k units)

Coating Icon
Coatings: Gloss/Matte, Velvet Soft Touch, Aqueous Coating, Holographic

Print Process Icon
Print Process: Offset, Digital, Screen

Extras Process Icon
Extra's: Window Patching, Foiling, Emboss/Deboss, Spot UV

Proofing Process Icon
Proofing: 2D View, 3D View, Physical Sampling (On Demand)
SBS C1S
SBS C1S
Premium-grade bleached white paperboard coated on one side for high-quality printing and finishes.
♻️ 100% Recyclable 🌿 Eco-Friendly
SBS C2S
SBS C2S
Premium-grade bleached white paperboard coated on two sides for high-quality printing and finishes.
♻️ 100% Recyclable 🌿 Eco-Friendly
CCNB
CCNB
Duplex paperboard made from 90% recycled paper pulp with a white surface for high-quality printing.
♻️ 100% Recyclable 🌿 Eco-Friendly
Fully Recycled CCNB
Fully Recycled CCNB
Duplex paperboard coated on one side and made from 90% recycled paper pulp.
♻️ 100% Recyclable 🌿 Eco-Friendly
Natural Brown Kraft
Natural Brown Kraft
Kraft paper made from a mix of virgin and recycled paper pulp, coated on both sides for printing.
♻️ 100% Recyclable 🌿 Eco-Friendly
White Kraft
White Kraft
Bleached kraft paper made from a mix of virgin and recycled pulp with coating on both sides for printing.
♻️ 100% Recyclable 🌿 Eco-Friendly
Black Kraft
Black Kraft
Black dyed kraft paper made from a mix of virgin and recycled pulp, coated on both sides for printing.
♻️ 100% Recyclable 🌿 Eco-Friendly
Uncoated Unbleached Kraft
Uncoated Unbleached Kraft
Unbleached kraft paper with no coating. Made from a mixture of virgin and recycled paper pulp.
♻️ 100% Recyclable 🌿 Eco-Friendly
Clay-coated Kraft Back
Clay-coated Kraft Back
Kraft paper with a coated bleached topside for high-quality print and unbleached bottom side.
♻️ 100% Recyclable 🌿 Eco-Friendly
Clay Natural Kraft
Clay Natural Kraft
Kraft paper with an uncoated bleached topside and unbleached bottom side.
♻️ 100% Recyclable 🌿 Eco-Friendly
Metallic
Metallic
Specialty paper material featuring a glossy or matte metallic laminated surface.
♻️ 100% Recyclable 🌿 Eco-Friendly
Holographic
Holographic
Specialty paper material featuring a glossy or matte holographic laminated surface.
♻️ 100% Recyclable 🌿 Eco-Friendly
Textured
Textured
Premium-grade textured paper stock primarily used for wrapping rigid boxes.
♻️ 100% Recyclable 🌿 Eco-Friendly
Aqueous Coating
Aqueous Coating
Clear, fast-drying, water-based, and eco-friendly coating. Available in gloss or matte finish.
UV Coating
UV Coating
Fast-drying coating cured with ultraviolet light. Available in gloss or matte finish.
Spot UV
Spot Gloss UV
UV coating that is applied to a specified area and cured using ultraviolet light.
Soft Touch Coating
Soft Touch Coating
Soft to the touch coating that creates a velvety texture for a more tactile appeal.
Varnish
Varnish
Clear coating applied using the CMYK printing method. Available in gloss, satin, or matte.
Lamination
Lamination
Laminated protective film that adheres to the surface of packaging materials to maximize durability.
Anti-scratch Lamination
Anti-scratch Lamination
Laminated BOPP film that is scratch, scuff, and fingerprint resistant. Cost-effective option.
Soft Touch / Silk Lamination
Soft Touch / Silk Lamination
Soft to the touch lamination similar to peach skin. Available in a satin or matte finish.
Hot Foil Stamping
Hot Foil Stamping
Form of relief printing in which foil is transferred to a surface at high temperatures.
Cold Foil Printing
Cold Foil Printing
Form of relief printing in which foil is transferred to a surface by pressing onto UV curable adhesives.
Blind Embossing
Blind Embossing
Form of relief printing in which dies is pressed on the back of the material to form a raised motif.
Blind Debossing
Blind Debossing
Form of relief printing in which dies is pressed on the front of the material to form a raised motif.
Registered Embossing
Registered Embossing
Form of relief printing in which a die is pressed on the back of the material to form a raised motif.
Combination Embossing
Combination Embossing
Combination between embossing and foil stamping. It creates a 3D motif that features a foil finish.
Window Patching
Window Patching
Die-cut shape is layered with plastic film to feature a window showcasing the product inside.
How To Prepare Your Custom Packaging Artwork ?
Format Icon
Accepted Formats: Adobe InDesign, Adobe Photoshop, Adobe Illustrator, Corel Draw

Artwork Icon
Artwork Creation:  Layout your artwork on the provided die template and send back to us for proofing. If your product needs a white ink please create a separate layer. Embed your images with a resolution of min 300dpi or provide vector file

Bleed Icon
Bleed Margin: Add 0.625" as bleed margin in your file

Color Icon
Colour Management: Identify PMS colours on file for us to match with PMS - Do not decide colours from pdf file. As they are not compatible with original prints. Update us if you already have a colour sample for us to match

Font Icon
Fonts: Curve outline the fonts if any special font is used in your file - Any special font used in file to be provided separately

Page Size Icon
Page Size: Setup the page size of your artwork to the exact size of your file on a single page. Our team will adjust the artwork canvas and uppings at our end. We recommend to print the final proof on actual size and make a paper dummy to ensure proper sizing of your boxes
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4.9
★★★★★
Based on 44 verified B2B orders
✓ 100% Verified Production · DDP USA Freight Protected

Client Feedback & Quality Verification

★★★★★
October 23, 2026

Outstanding quality on short-run production

Finding a reliable factory for Seal End Box runs at 100-250 units without huge setup markups was difficult until we found XCustomBox. The 24-hour 3D proof allowed us to verify dimensions perfectly before production, and delivery arrived in 7 business days.

Marcus Vance
Operations Lead · DTC Brand · Austin, TX
Verified Order
★★★★★
October 8, 2026

Flawless color matching and sturdy cardstock

We ordered custom Seal End Box for our seasonal retail launch. The cardstock rigidity and matte finish gave our product the exact premium shelf presence we needed. Zero damage in transit.

Elena Rostova
Packaging & Design Specialist · Seattle, WA
Verified Order
★★★★★
September 13, 2026

Fast 3D mockup, $0 die fees & responsive support

Zero tooling fees and free prepress vector support made our bootstrap run seamless. Delivered directly to our warehouse on schedule.

Derek Klein
Founder & CEO · Chicago, IL
Verified Order
Looking for Bulk Wholesale & Fast 7-Day Turnaround? Visit our Official Wholesale Division: XCB Packaging USA (100 Low MOQ • Bulk Tier Discounts • Delivered in 7 Days) →
🏭 Official B2B & Wholesale Manufacturing Division: XCB Packaging — 100 MOQ Factory Direct Custom Boxes | 💬 WhatsApp Support: +1 (929) 652-4441
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